JP2794920B2 - earphone - Google Patents
earphoneInfo
- Publication number
- JP2794920B2 JP2794920B2 JP2237526A JP23752690A JP2794920B2 JP 2794920 B2 JP2794920 B2 JP 2794920B2 JP 2237526 A JP2237526 A JP 2237526A JP 23752690 A JP23752690 A JP 23752690A JP 2794920 B2 JP2794920 B2 JP 2794920B2
- Authority
- JP
- Japan
- Prior art keywords
- tragus
- case
- locking
- diameter
- earphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1016—Earpieces of the intra-aural type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電気音響変換素子を内蔵するケースを耳介
の凹部に装着して使用するイヤホンに関するものであ
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earphone in which a case containing an electroacoustic transducer is mounted in a concave portion of an auricle.
従来の技術 従来この種イヤホンは、外耳道に音道部を挿入する旧
来のタイプのイヤホンに対し、外耳道への挿入による圧
迫から生じる不快感がないこと、また電気音響変換素子
をより大きく構成して特に低音部の音質特性を改善でき
ること等から、最近ではそのほとんどを占めるほどにな
っている。2. Description of the Related Art Conventionally, this type of earphone has no discomfort caused by compression due to insertion into the ear canal, and has a larger electro-acoustic conversion element, compared to a conventional type earphone that inserts a sound path portion into the ear canal. Particularly, since the sound quality characteristics of the bass part can be improved, most of them have recently been occupied.
その従来のイヤホンとしては、特公昭64−4398号公報
に示されるように、ハウジングの前面外周部に前記ハウ
ジングの他の部分より径大となる耳介係止部を形成し、
その耳介係止部を耳介の窪み部内に装着されるものであ
り、前記係止部は実施例図面から明らかなように、円形
に形成されているものである。As the conventional earphone, as shown in JP-B-64-4398, an auricle engaging portion that is larger in diameter than other portions of the housing is formed on the outer peripheral portion of the front surface of the housing,
The pinna locking portion is mounted in a concave portion of the pinna, and the locking portion is formed in a circular shape as is clear from the drawings of the embodiment.
発明が解決しようとする課題 しかしながら前記のような従来のイヤホンは、少しで
も音響特性を改善すべく電気音響変換素子を大きくして
全体ケースを大きくし過ぎると、耳介の凹部に装着した
際に、特に耳珠と対珠に続く外耳道への入口上部との間
の寸法が短い部分で圧迫感を感じ、耳介及び耳介凹部の
大きさは個人差があるものの、その耳珠と対珠に続く外
耳道への入口上部との間の寸法がケースの大きさを決定
するものとなって、この種イヤホンの大きさを制限する
という問題点を有していた。Problems to be Solved by the Invention However, conventional earphones as described above, when the overall case is too large by increasing the size of the electro-acoustic transducer in order to improve the acoustic characteristics even a little, when the In particular, there is a feeling of oppression in the part where the dimension between the tragus and the upper part of the entrance to the external auditory meatus following the antitragus is short, and although the size of the pinna and the concavity of the auricle vary among individuals, the tragus and the antitragus The size between the earphone and the upper portion of the entrance to the ear canal determines the size of the case, and has a problem that the size of such an earphone is limited.
本発明は、前記従来の問題点に鑑み、耳介凹部に装着
するものにして、その装着時の圧迫をなくして可能な限
り大径の電気音響変換素子を構成でき、その音響特性の
優れたイヤホンを提供することを目的としてなされたも
のである。The present invention has been made in view of the above-mentioned conventional problems, and can be configured to be mounted in an auricular recess, and can have an electroacoustic transducer having a diameter as large as possible without pressure during mounting. The purpose is to provide earphones.
課題を解決するための手段 前記課題を解決するために本発明のイヤホンは、耳介
凹部に装着して使用するイヤホンであって、耳介凹部に
装着したとき耳珠及び対珠に係止されるケース部と、こ
のケース部の外径より小径に形成されコードを導出する
導出部と、前記ケース部の中心部に内蔵された電気音響
変換素子を備え、前記ケース部は、前記導出部が耳珠と
対珠の間部分になるように装着したとき、耳珠の上部の
外耳道入口上縁部と対珠とを結ぶ線部の径が小径で、耳
珠とこの耳珠に対向する耳介凹部とを結ぶ線部の径が大
径となるように、当該大径部の方向は前記導出部の軸心
方向に対して一定の角度だけ回転させた状態で構成し、
前記円形電気音響変換素子のフレームは、外周縁の対向
する部分の一方向に外側に突出する一対の係止用突起部
及び当該突起部間に形成された係止用凹部を、他方に外
側に突出する一対の係止用突起部及び当該突起部間に形
成されたリード線貫通凹部を設け、また、前記円形電気
音響変換素子を内蔵するケース部は、当該ケース部の大
径方向の周縁部に、前記フレームの係止用突起部を係止
する凹部と、前記係止用凹部を係止する係止用リブを形
成し、このケース部に電気音響変換素子を配置構成した
ものである。Means for Solving the Problems To solve the above-mentioned problems, the earphone of the present invention is an earphone to be used by being attached to a pinna recess, and is fixed to an tragus and an antitragus when attached to the pinna recess. A case portion, a leading portion formed to have a diameter smaller than the outer diameter of the case portion and leading out a code, and an electroacoustic transducer incorporated in a central portion of the case portion, wherein the case portion has the leading portion. When installed so that it is located between the tragus and the tragus, the diameter of the line connecting the upper edge of the entrance of the external auditory canal at the top of the tragus and the tragus is small, and the tragus and the ear facing the tragus The direction of the large-diameter portion is configured to be rotated by a fixed angle with respect to the axial direction of the lead-out portion so that the diameter of the line portion connecting the intermediary concave portion is large,
The frame of the circular electroacoustic transducer has a pair of locking projections protruding outward in one direction in a portion of the outer peripheral edge and a locking recess formed between the projections, and a locking recess formed on the other side. A pair of protruding locking projections and a lead wire penetrating recess formed between the projections are provided, and a case portion containing the circular electroacoustic transducer is a peripheral portion of the case portion in a large diameter direction. A recess for locking the locking projection of the frame and a locking rib for locking the locking recess are formed, and the electroacoustic transducer is arranged in the case.
作用 本発明は前記した構成によって、イヤホンのケース部
を耳介凹部に装着し、導出部を耳珠と対珠の間部分に位
置させることにより、ケース部の大径方向が耳珠内側か
らこの耳珠と対向する耳介凹部の方向となり、この大径
方向に円形電気音響変換素子フレームの外周縁の外側に
突出する一対の係止部の方向を一致させることによって
電気音響変換素子の外形寸法ができるだけ大きいものを
用いることができ音響特性、特に低音再生に優れたもの
とすることができる。Operation The present invention has the above-described configuration, in which the case portion of the earphone is attached to the auricle concave portion and the lead-out portion is located at a portion between the tragus and the antitragus. The outer dimensions of the electro-acoustic transducer are determined by matching the direction of a pair of locking portions projecting outside the outer peripheral edge of the circular electro-acoustic transducer frame with the direction of the auricular recess facing the tragus. Can be used as much as possible, and the acoustic characteristics, particularly the bass reproduction, can be improved.
実施例 以下本発明の実施例のイヤホンについて、第１図〜第
４図を参照しながら詳細に説明する。Embodiment Hereinafter, an earphone according to an embodiment of the present invention will be described in detail with reference to FIG. 1 to FIG.
第１図は本発明イヤホンと左右の耳介を示すものであ
り、１はイヤホンで、左側イヤホン1aと、右側イヤホン
1bとを有し、テープレコーダ等の再生装置に接続するプ
ラグ２とを接続するコード3,4の中途においてリモコン
装置５を有している。6aは左側耳介、6bは右側耳介であ
り、前記左右のイヤホン1a,1bがそれぞれ装着されるも
のである。FIG. 1 shows an earphone of the present invention and left and right auricles, wherein 1 is an earphone, a left earphone 1a and a right earphone.
1b, and a remote control device 5 in the middle of the cords 3 and 4 for connecting to a plug 2 for connecting to a playback device such as a tape recorder. 6a is a left pinna, 6b is a right pinna, and the left and right earphones 1a and 1b are respectively mounted.
前記左右のイヤホン1a,1bは、それぞれケース部７と
導出部８とを備えているが、ケース部７はその外周が円
ではなく、大径部と小径部とを形成するほぼ楕円形状に
形成している。そして、イヤホン1a,1bの前記大径部の
方向Ａは、導出部８の軸心方向Ｂに対して一定の角度α
だけ回転した状態で構成され、その回転方向は左側イヤ
ホン1aと右側イヤホン1bとで逆方向（すなわち左右対
称）になるように構成されている。前記角度αは、前記
左右の耳介6a,6bの形状に基づくものである。Each of the left and right earphones 1a and 1b includes a case portion 7 and a lead-out portion 8. The case portion 7 has a substantially elliptical shape in which the outer periphery is not circular but forms a large diameter portion and a small diameter portion. doing. The direction A of the large-diameter portions of the earphones 1a and 1b is at a certain angle α with respect to the axial direction B of the lead-out portion 8.
The left earphone 1a and the right earphone 1b rotate in opposite directions (that is, left-right symmetric). The angle α is based on the shape of the left and right pinna 6a, 6b.
ここで、左右の耳介6a,6bはほぼ対称であり、それぞ
れ、耳介凹部9,耳珠10,対珠11,珠間切痕12,耳介凹部９
に続く耳珠10内側の外耳道13等を有する。イヤホン１の
ケース部７を耳介凹部９に装着させて、耳珠10,対珠11
間に安定させる場合、導出部８は珠間切痕12の方向に位
置されることになる。ここで、耳珠10の上部の外耳道入
口上縁部14と対珠11とを結ぶ線部の間の寸法L1に比べ、
耳珠10とこの耳珠10に対向する耳介凹部９とを結ぶ線部
の間の寸法L2が大きい。この両寸法L1,L2の差から、前
記導出部８の軸心方向Ｂに対するケース部７の大径部方
向Ａの回転角度αを決定する。すなわち、イヤホン１の
ケース部７は、導出部８が耳珠10と対珠11との間の珠間
切痕12部分になるように装着したとき、耳珠10の上部の
外耳道入口上縁部14と対珠11とを結ぶ線部の径が小径
で、耳珠10とこの耳珠10に対向する耳介凹部９とを結ぶ
線部の径が大径となるように構成する。Here, the left and right auricles 6a and 6b are substantially symmetrical, and the auricle recess 9, the tragus 10, the tragus 11, the intertraumatic notch 12, and the auricle recess 9, respectively.
And the external auditory meatus 13 and the like inside the tragus 10. The case 7 of the earphone 1 is attached to the auricle recess 9, and the tragus 10 and the tragus 11
In the case of stabilization in the middle, the lead-out portion 8 will be located in the direction of the bead notch 12. Here, compared to the dimensions L 1 between the line parts connecting the ear canal entrance on the edge 14 and the antitragus 11 top of the tragus 10,
Large dimension L 2 between the line portion connecting the tragus 10 and the pinna recess 9 facing the tragus 10. From the difference between the two dimensions L 1 and L 2 , the rotation angle α of the case portion 7 in the large diameter portion direction A with respect to the axial direction B of the lead portion 8 is determined. That is, when the case part 7 of the earphone 1 is attached so that the lead-out part 8 becomes the intertrabecular notch 12 between the tragus 10 and the tragus 11, the outer ear canal entrance upper edge 14 above the tragus 10 is attached. The diameter of the line connecting the tragus 11 and the tragus 11 is small, and the diameter of the line connecting the tragus 10 and the auricle recess 9 facing the tragus 10 is large.
第２図は、前記ケース部７の詳細を示すものである。
同図において、15はケース本体、16は前面ケースであ
り、この両者間に電気音響変換素子17を内蔵するもので
ある。18は前面ケース16の前面に設けたネットである。
前記ケース本体15と前面ケース16の電気音響変換素子17
内蔵部分の外周は、前述のとおりほぼ楕円形状である
が、電気音響変換素子17のフレーム18の外周は第３図に
示すように円形である。FIG. 2 shows the details of the case 7.
In the figure, 15 is a case main body, 16 is a front case, and an electroacoustic transducer 17 is built in between them. Reference numeral 18 denotes a net provided on the front of the front case 16.
The electroacoustic transducer 17 of the case body 15 and the front case 16
Although the outer periphery of the built-in portion is substantially elliptical as described above, the outer periphery of the frame 18 of the electroacoustic transducer 17 is circular as shown in FIG.
そして、そのフレーム18の外周には、係止用突起19及
び係止用凹部20と、これと対向する係止用突起21及びリ
ード線貫通凹部22とを形成している。一方、前面ケース
16には、第４図に示すように、前記係止用突起19を係止
する凹部23及び係止用リブ24と、前記係止用突起21を係
止する凹部25を形成すると共に、前記電気音響変換素子
17からの放音を行なう孔26を形成している。このような
構成により、係止用突起19,21部分を、ケース部７の大
径部方向Ａとすれば、直交する方向は電気音響変換素子
17のフレーム18ぎりぎりまで寸法をつめることができ、
小径部とすることができる。On the outer periphery of the frame 18, a locking projection 19 and a locking recess 20 and a locking projection 21 and a lead wire penetrating recess 22 opposed thereto are formed. Meanwhile, the front case
In FIG. 4, as shown in FIG. 4, a concave portion 23 and a locking rib 24 for locking the locking projection 19 and a concave portion 25 for locking the locking projection 21 are formed. Electroacoustic transducer
A hole 26 for emitting sound from 17 is formed. With such a configuration, if the locking projections 19 and 21 are defined as the direction A of the large-diameter portion of the case 7, the orthogonal direction is the electroacoustic transducer.
I can pack the dimensions up to just 18 frames, 18 frames,
It can be a small diameter portion.
発明の効果 以上のように本発明は、耳介凹部に装着して使用する
イヤホンであって、耳介凹部に装着したとき耳珠及び対
珠に係止されるケース部と、このケース部の外径より小
径に形成されコードを導出する導出部と、前記ケース部
の中心部に内蔵された電気音響変換素子を備え、前記ケ
ース部は、前記導出部が耳珠と対珠の間部分になるよう
に装着したとき、耳珠の上部の外耳道入口上縁部と対珠
とを結ぶ線部の径が小径で、耳珠とこの耳珠に対向する
耳介凹部とを結ぶ線部の径が大径となるように、当該大
径部の方向は前記導出部の軸心方向に対して一定の角度
だけ回転させた状態で構成し、前記円形電気音響変換素
子のフレームは、外周縁の対向する部分の一方向に外側
に突出する一対の係止用突起部及び当該突起部間に形成
された係止用凹部を、他方に外側に突出する一対の係止
用突起部及び当該突起部間に形成されたリード線貫通凹
部を設け、また、前記円形電気音響変換素子を内蔵する
ケース部は、当該ケース部の大径方向の周縁部に、前記
フレームの係止用突起部を係止する凹部と、前記係止用
凹部を係止する係止用リブを形成したものであり、ケー
ス部に対する円形電気音響変換素子のフレームの係止を
行う係止用突起部及び係止用凹部を、ケース部の大径方
向の周縁部に対応して構成したことにより、当該フレー
ムをケース部の小径方向の径に合わせて可能な限り大径
の電気音響変換素子を構成できるものであり、その円形
電気音響変換素子はケース部の大径方向の周縁部に形成
した凹部と係止用リブに簡単に配置構成することができ
る。併せて、ケース部の大径部方向を導出部に対して一
定の角度だけ回転させた状態で構成することにより、ケ
ース部の耳介凹部への装着時の圧迫をなくして、この電
気音響変換素子の外形寸法ができるだけ大きいものを用
いることができることにより、特に低温の音響再生特性
の優れたイヤホンとすることができ、非常に有効な発明
である。Effect of the Invention As described above, the present invention relates to an earphone to be used by being attached to an auricle recess, and a case portion to be locked to an tragus and an antitragus when attached to the auricle recess, A lead portion formed to have a smaller diameter than the outer diameter to lead out the cord, and an electroacoustic transducer incorporated in the center of the case portion, wherein the case portion is provided at a portion between the tragus and the tragus. When attached, the diameter of the line connecting the upper edge of the entrance of the external auditory canal at the top of the tragus and the antitragus is small, and the diameter of the line connecting the tragus and the auricular recess facing the tragus So that the direction of the large-diameter portion is rotated by a fixed angle with respect to the axial direction of the lead-out portion, and the frame of the circular electroacoustic transducer has an outer peripheral edge. A pair of locking projections protruding outward in one direction of the opposing portion, and an engagement formed between the projections. The locking recess is provided on the other side with a pair of locking projections protruding outward and a lead wire penetrating recess formed between the projections, and the case portion incorporating the circular electroacoustic transducer is provided with A concave portion for locking the locking projection of the frame and a locking rib for locking the locking concave portion are formed in a peripheral portion of the case portion in the large diameter direction, and are circular with respect to the case portion. The locking projections and locking recesses for locking the frame of the electroacoustic transducer correspond to the large-diameter peripheral edge of the case portion, so that the frame is formed in the small-diameter direction of the case portion. It is possible to construct an electroacoustic transducer as large as possible in accordance with the diameter, and the circular electroacoustic transducer can be easily arranged in the concave part formed in the peripheral part of the case part in the large diameter direction and the rib for locking. Can be configured. At the same time, by constructing the case part in a state in which the direction of the large diameter part is rotated by a fixed angle with respect to the lead-out part, the pressure when the case part is attached to the auricle recess is eliminated, and this electroacoustic conversion is performed. Since an element having an outer dimension as large as possible can be used, an earphone having excellent low-temperature sound reproduction characteristics can be obtained, which is a very effective invention.
第１図は本発明の第１の実施例におけるイヤホンを耳介
と供に示す全体図、第２図はケース部の分解断面図、第
３図は電気音響変換素子のフレームの正面図、第４図は
前面ケースの内面図である。 １……イヤホン、６……耳介、７……ケース部、８……
導出部、９……耳介凹部、10……耳珠、11……対珠、13
……外耳道、14外耳道入口上縁部。FIG. 1 is an overall view showing an earphone with an auricle in a first embodiment of the present invention, FIG. 2 is an exploded sectional view of a case portion, FIG. 3 is a front view of a frame of an electroacoustic transducer, FIG. FIG. 4 is an inner view of the front case. 1 ... earphone, 6 ... pinna, 7 ... case part, 8 ...
Lead-out part, 9 ... auricle recess, 10 ... tragus, 11 ... anti-tragus, 13
…… ear canal, upper edge of 14 ear canal entrance.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H04R 1/10──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) H04R 1/10
Claims (1)
って、耳介凹部に装着したとき耳珠及び対珠に係止され
るケース部と、このケース部の外径より小径に形成され
コードを導出する導出部と、前記ケース部の中心部に内
蔵された電気音響変換素子を備え、 前記ケース部は、前記導出部が耳珠と対珠の間部分にな
るように装着したとき、耳珠の上部の外耳道入口上縁部
と対珠とを結ぶ線部の径が小径で、耳珠とこの耳珠に対
向する耳介凹部とを結ぶ線部の径が大径となるように、
当該大径部の方向は前記導出部の軸心方向に対して一定
の角度だけ回転させた状態で構成し、 前記円形電気音響変換素子のフレームは、外周縁の対向
する部分の一方向に外側に突出する一対の係止用突起部
及び当該突起部間に形成された係止用凹部を、他方に外
側に突出する一対の係止用突起部及び当該突起部間に形
成されたリード線貫通凹部を設け、 また、前記円形電気音響変換素子を内蔵するケース部
は、当該ケース部の大径方向の周縁部に、前記フレーム
の係止用突起部を係止する凹部と、前記係止用凹部を係
止する係止用リブを形成し、このケース部に電気音響変
換素子を配置構成したことを特徴とするイヤホン。1. An earphone to be used by being mounted in a concavity of an auricle, wherein the case is engaged with an tragus and an antitragus when mounted in the concavity of an auricle, and has a diameter smaller than an outer diameter of the case. A deriving part for deriving a code, and an electroacoustic transducer incorporated in the center of the case part, wherein the case part is mounted so that the deriving part is located between the tragus and the tragus. The diameter of the line connecting the upper edge of the external auditory canal entrance at the top of the tragus and the antitragus is small, and the diameter of the line connecting the tragus and the auricular recess facing the tragus is large. To
The direction of the large-diameter portion is configured to be rotated by a fixed angle with respect to the axial direction of the lead-out portion, and the frame of the circular electroacoustic transducer is outwardly located in one direction of a portion where the outer peripheral edge is opposed. A pair of locking projections protruding from each other and a locking recess formed between the projections, and a pair of locking projections protruding outward and a lead wire formed between the projections on the other side. A concave portion for providing a concave portion; a case portion containing the circular electroacoustic transducer; a concave portion for locking a locking projection of the frame on a peripheral portion of the case portion in a large-diameter direction; An earphone, wherein a locking rib for locking a concave portion is formed, and an electro-acoustic transducer is arranged in the case portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2237526A JP2794920B2 (en) | 1990-09-07 | 1990-09-07 | earphone |
| US07/755,763 US5222151A (en) | 1990-09-07 | 1991-09-06 | Earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2237526A JP2794920B2 (en) | 1990-09-07 | 1990-09-07 | earphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04117899A JPH04117899A (en) | 1992-04-17 |
| JP2794920B2 true JP2794920B2 (en) | 1998-09-10 |
Family
ID=17016639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2237526A Expired - Fee Related JP2794920B2 (en) | 1990-09-07 | 1990-09-07 | earphone |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5222151A (en) |
| JP (1) | JP2794920B2 (en) |
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| US5412736A (en) * | 1992-03-23 | 1995-05-02 | Keliiliki; Shawn P. | Personal audio system and earphone for same |
| JP3254834B2 (en) * | 1993-08-06 | 2002-02-12 | 松下電器産業株式会社 | earphone |
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| ATE527827T1 (en) | 2000-01-20 | 2011-10-15 | Starkey Lab Inc | METHOD AND DEVICE FOR HEARING AID ADJUSTMENT |
| US6961440B1 (en) * | 2000-02-08 | 2005-11-01 | Pacific Coast Laboratories, Inc. | Electro-acoustic system |
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| JP2006509413A (en) * | 2002-12-04 | 2006-03-16 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Stereo signal communication using Bluetooth transceiver in earphone |
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| KR100726325B1 (en) * | 2006-11-28 | 2007-06-08 | 최성식 | Face plate, vibration speaker having the face plate and portable terminal including same |
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| CN102761799A (en) * | 2011-04-27 | 2012-10-31 | 鸿富锦精密工业（深圳）有限公司 | Earphone |
| US8737669B2 (en) | 2011-07-28 | 2014-05-27 | Bose Corporation | Earpiece passive noise attenuating |
| NO2690883T3 (en) | 2012-07-27 | 2018-03-10 | ||
| TWD174731S (en) * | 2012-09-07 | 2016-04-01 | 蘋果公司 | Display panel for an electronic device |
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| US10382856B2 (en) | 2015-11-23 | 2019-08-13 | Jerzy Franciszek KUCHARKO | Electrical device comprising an earphone |
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| USD824875S1 (en) * | 2016-08-31 | 2018-08-07 | Harman International Industries, Incorporated | Headphone |
| USD824359S1 (en) | 2016-08-31 | 2018-07-31 | Harman International Industries, Incorporated | Headphone |
| USD862412S1 (en) | 2017-11-29 | 2019-10-08 | Harman International Industries, Incorporated | Headphone |
| USD870065S1 (en) * | 2017-12-27 | 2019-12-17 | Sony Corporation | Earphone |
| USD862422S1 (en) | 2017-12-29 | 2019-10-08 | Harman International Industries, Incorporated | Headphone |
| USD895569S1 (en) * | 2018-06-08 | 2020-09-08 | Flashbay Electronics Hong Kong Limited | Wireless adaptor |
| USD839238S1 (en) * | 2018-07-02 | 2019-01-29 | Mpow Technology Co., Limited | Earphone |
| USD908109S1 (en) * | 2018-09-13 | 2021-01-19 | Gn Audio A/S | Headset for telephone |
| US11166093B2 (en) | 2019-03-19 | 2021-11-02 | Logitech Europe S.A. | Earphone device support and case |
| USD974038S1 (en) | 2020-12-02 | 2023-01-03 | Logitech Europe S.A. | Earphone case |
| USD1002583S1 (en) | 2020-12-02 | 2023-10-24 | Logitech Europe S.A. | Combined earphone and earphone case |
| USD969772S1 (en) | 2020-12-02 | 2022-11-15 | Logitech Europe S.A. | Earphone |
| USD982549S1 (en) * | 2021-04-09 | 2023-04-04 | Shenzhen Liangbao Technology Co., Ltd. | Headphone adapter |
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|---|---|---|---|---|
| GB2082020B (en) * | 1980-06-30 | 1985-05-30 | Pioneer Electronic Corp | Ear speaker |
| CA1165248A (en) * | 1980-10-31 | 1984-04-10 | Shingo Watanabe | Electro-acoustic transducer |
| JPS58161380U (en) * | 1982-04-22 | 1983-10-27 | 三洋電機株式会社 | speaker device |
| JPH0635593Y2 (en) * | 1985-05-29 | 1994-09-14 | 松下電器産業株式会社 | Headphone |
| JPS6411093U (en) * | 1987-07-08 | 1989-01-20 | ||
| JPH01137691U (en) * | 1988-03-15 | 1989-09-20 | ||
| JPH0221890U (en) * | 1988-07-12 | 1990-02-14 |
-
1990
- 1990-09-07 JP JP2237526A patent/JP2794920B2/en not_active Expired - Fee Related
-
1991
- 1991-09-06 US US07/755,763 patent/US5222151A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04117899A (en) | 1992-04-17 |
| US5222151A (en) | 1993-06-22 |
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| LAPS | Cancellation because of no payment of annual fees |